no need to check for existence of _events on bind/unbind/trigger

[millermedeiros]

The variable should be created inside the mixin method since microevents can't work without it. That way you avoid checking if the variable exist and reduce code duplication.

[ghost]

I think a good way would be to set this._events = {} in the MicroEvent function. Then you would have to do the following in your functions...

function Test() {
  MicroEvent.call(this);
}